/* ============================================================
   PharmaGaza SaaS — التنسيق
   ملاحظات التغيير عن النسخة السابقة:
   • --muted-dark رُفع تباينه ليجتاز WCAG AA (كان 4.21:1 و 3.32:1)
   • خصائص منطقية (inline-start) بدل الفيزيائية لدعم RTL سليم
   • شريط تنقل سفلي على الجوال بدل الشريط العلوي المزدحم
   • الجداول تتحول إلى بطاقات تحت 768px بدل التمرير الأفقي
   ============================================================ */

:root {
  /* يجعل المتصفح يرسم عناصر النظام (قوائم select، أشرطة التمرير،
     منتقي التاريخ) بألوان داكنة. بدونه تظهر خيارات القائمة بخلفية
     بيضاء ونص أبيض فلا تُقرأ. */
  color-scheme: dark;
  --field-bg: #14141c;          /* خلفية صلبة للحقول — لا شفافة */
  --bg: #050508;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  --text: #fafafa;
  --muted: #a1a1aa;
  --muted-dark: #8b8b95;        /* كان #71717a — 4.21:1 يسقط في AA */
  --primary: #00e5a8;
  --primary-glow: rgba(0, 229, 168, 0.2);
  --danger: #ff5a5a;
  --danger-glow: rgba(255, 90, 90, 0.2);
  --warning: #fbbf24;
  --warning-glow: rgba(251, 191, 36, 0.12);
  --info: #60a5fa;
  --shadow-color: rgba(0, 0, 0, 0.5);
  --body-gradient: radial-gradient(circle at 50% 0%, rgba(0, 229, 168, 0.05), transparent 60%);
  --btn-text-color: #050508;
  --blur-bg: rgba(10, 10, 15, 0.85);
  --radius: 14px;
}

[data-theme="light"] {
  color-scheme: light;
  --field-bg: #ffffff;
  --bg: #f8f9fa;
  --surface: #ffffff;
  --surface-hover: #f1f3f5;
  --border: #e3e7ea;
  --border-hover: #ced4da;
  --text: #1a1d1f;
  --muted: #495057;
  --muted-dark: #5a6169;        /* كان #868E96 — 3.32:1 يسقط بوضوح */
  --primary: #00a884;
  --primary-glow: rgba(0, 168, 132, 0.15);
  --danger: #d64545;
  --danger-glow: rgba(214, 69, 69, 0.1);
  --warning: #b7791f;
  --warning-glow: rgba(183, 121, 31, 0.1);
  --info: #1c7ed6;
  --shadow-color: rgba(0, 0, 0, 0.06);
  --body-gradient: radial-gradient(circle at 50% 0%, rgba(0, 168, 132, 0.05), transparent 60%);
  --btn-text-color: #ffffff;
  --blur-bg: rgba(255, 255, 255, 0.88);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Noto Sans Arabic", "Segoe UI", Tahoma, Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

body {
  background: var(--bg);
  background-image: var(--body-gradient);
  color: var(--text);
  min-height: 100dvh;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.hidden { display: none !important; }

/* ---------- عناصر أساسية ---------- */
button {
  cursor: pointer;
  border: none;
  border-radius: 12px;
  font-weight: 600;
  transition: background 0.2s ease, transform 0.2s ease;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  min-height: 44px;
  touch-action: manipulation;
}
@media (hover: hover) {
  button:hover { background: var(--surface-hover); }
  .btn-primary:hover, .btn-sell:hover { transform: translateY(-1px); }
}
button:disabled { opacity: 0.45; cursor: not-allowed; }
button:active:not(:disabled) { transform: scale(.98); }

:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

input, select, textarea {
  background: var(--field-bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 13px 15px;
  border-radius: 12px;
  width: 100%;
  font-size: 16px;              /* 16px يمنع تكبير iOS التلقائي */
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}
/* الخيارات يرسمها النظام لا الصفحة — تحتاج ألواناً صريحة */
select option, select optgroup {
  background: var(--field-bg);
  color: var(--text);
}
input:focus, select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow);
}
label {
  color: var(--muted-dark);
  font-size: 13px;
  margin-block-end: 6px;
  display: block;
  font-weight: 500;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 10px; }

/* ---------- التنبيهات ---------- */
#toast-container {
  position: fixed;
  inset-block-end: 90px;
  inset-inline: 0;
  margin-inline: auto;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: min(92%, 420px);
  pointer-events: none;
}
.toast {
  padding: 14px 22px;
  border-radius: 12px;
  font-weight: 600;
  text-align: center;
  animation: slideIn 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 8px 32px var(--shadow-color);
}
.toast.success { background: var(--primary); color: var(--btn-text-color); }
.toast.error { background: var(--danger); color: #fff; }
.toast.info { background: var(--info); color: #fff; }
@keyframes slideIn { from { transform: translateY(16px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- الحوارات ---------- */
dialog {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--bg);
  color: var(--text);
  padding: 24px;
  width: min(92vw, 420px);
  box-shadow: 0 24px 60px var(--shadow-color);
}
dialog::backdrop { background: rgba(0, 0, 0, 0.6); }
dialog h3 { font-size: 18px; margin-block-end: 12px; }
dialog p { color: var(--muted); font-size: 14px; margin-block-end: 16px; line-height: 1.7; }
.dialog-actions { display: flex; gap: 10px; margin-block-start: 18px; }
.dialog-actions button { flex: 1; padding: 12px; }

/* ---------- شاشة الدخول ---------- */
#login-view {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.login-card {
  background: var(--blur-bg);
  backdrop-filter: blur(20px);
  padding: 36px 24px;
  border-radius: 24px;
  border: 1px solid var(--border);
  text-align: center;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 0 80px var(--shadow-color);
}
.login-card h1 { font-size: 22px; font-weight: 700; margin-block-end: 6px; }
.login-card .sub { color: var(--muted-dark); font-size: 13px; margin-block-end: 22px; }
.pin-dots { display: flex; justify-content: center; gap: 16px; margin: 22px 0; }
.pin-dots span {
  width: 13px; height: 13px; border-radius: 50%;
  background: var(--border-hover); transition: 0.2s;
}
.pin-dots span.active { background: var(--primary); box-shadow: 0 0 12px var(--primary-glow); }
.pin-pad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-block-start: 20px; }
.pin-pad button {
  background: var(--surface); border: 1px solid var(--border);
  padding: 17px; font-size: 20px; font-weight: 500;
}
.pin-pad .action-btn {
  background: var(--primary); color: var(--btn-text-color);
  font-weight: 700; border: none; font-size: 16px;
}
.pin-pad .danger-btn { background: transparent; border: 1px solid var(--border); color: var(--danger); font-size: 15px; }

/* ---------- الهيكل ---------- */
#app-view { display: flex; flex-direction: column; min-height: 100vh; }
.header {
  background: var(--blur-bg);
  backdrop-filter: blur(20px);
  padding: max(12px, env(safe-area-inset-top)) 16px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  border-block-end: 1px solid var(--border);
  position: sticky;
  inset-block-start: 0;
  z-index: 20;
}
.nav-btns {
  display: flex; gap: 4px; background: var(--surface);
  padding: 5px; border-radius: 14px; border: 1px solid var(--border);
}
.nav-btns button {
  background: transparent; color: var(--muted);
  min-height: 44px; padding: 8px 15px; border-radius: 10px; font-size: 14px; white-space: nowrap;
}
.nav-btns button.active {
  background: var(--surface-hover); color: var(--text);
  box-shadow: inset 0 0 0 1px var(--border-hover);
}
.status-bar { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--muted); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.dot-online { background: var(--primary); }
.dot-offline { background: var(--warning); animation: pulse 1.6s infinite; }
.dot-syncing { background: var(--info); animation: pulse 0.9s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.25; } }

.icon-btn {
  background: var(--surface); border: 1px solid var(--border);
  width: 44px; height: 44px; display: flex; align-items: center;
  justify-content: center; border-radius: 10px; font-size: 15px; flex-shrink: 0;
}
.theme-icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.theme-icon-moon { display: none; }
[data-theme="light"] .theme-icon-sun { display: none; }
[data-theme="light"] .theme-icon-moon { display: block; }

.content-area { flex: 1; padding: 22px 16px calc(32px + env(safe-area-inset-bottom)); }

/* ---------- شريط سفلي للجوال ---------- */
.bottom-nav { display: none; }

/* ---------- البطاقات ---------- */
.section-title { font-size: 20px; margin-block-end: 20px; font-weight: 700; }
.dash-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-block-end: 28px;
}
.dash-card {
  background: var(--surface); padding: 18px; border-radius: 18px;
  border: 1px solid var(--border); display: flex; flex-direction: column; gap: 8px;
}
.dash-card .icon {
  width: 34px; height: 34px; display: flex; align-items: center;
  justify-content: center; border-radius: 10px; font-size: 17px; background: var(--surface-hover);
}
.dash-card .icon svg, .empty-state .em svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.dash-card .value { font-size: 27px; font-weight: 800; letter-spacing: -0.5px; font-variant-numeric: tabular-nums; }
.dash-card .title { color: var(--muted-dark); font-size: 12.5px; }

.form-card {
  background: var(--surface); padding: 20px; border-radius: 18px;
  border: 1px solid var(--border); margin-block-end: 20px;
}
.form-card h3 { font-size: 16px; margin-block-end: 16px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; }

.btn-primary {
  background: var(--primary); color: var(--btn-text-color);
  padding: 12px 22px; font-size: 15px; border-radius: 12px; font-weight: 700;
}
.btn-danger {
  background: var(--danger-glow); color: var(--danger);
  padding: 8px 14px; font-size: 13px; border: 1px solid var(--danger);
}
.btn-info {
  background: transparent; color: var(--info);
  padding: 8px 14px; font-size: 13px; border: 1px solid var(--info);
}
.btn-ghost { background: var(--surface-hover); border: 1px solid var(--border); padding: 10px 16px; font-size: 14px; }

/* ---------- نقطة البيع ---------- */
.pos-container { display: flex; flex-direction: column; gap: 14px; }
.pos-left { flex: 2; display: flex; flex-direction: column; min-width: 0; }
.search-wrapper { position: relative; margin-block-end: 12px; display: flex; gap: 8px; }
.search-wrapper input { flex: 1; }
.btn-scan {
  background: var(--surface-hover); border: 1px solid var(--border);
  width: 52px; display: flex; align-items: center; justify-content: center; font-size: 19px; flex-shrink: 0;
}
.btn-scan svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.search-dropdown {
  position: absolute; inset-block-start: 58px; inset-inline: 0;
  background: var(--bg); border: 1px solid var(--border-hover);
  border-radius: 16px; z-index: 100; max-height: 340px; overflow-y: auto;
  box-shadow: 0 20px 40px var(--shadow-color);
}
.search-item {
  padding: 13px 15px; border-block-end: 1px solid var(--border);
  cursor: pointer; display: flex; justify-content: space-between;
  align-items: center; gap: 12px;
}
.search-item button, button.search-item { width: 100%; color: inherit; background: transparent; border: 0; text-align: start; font-weight: inherit; }
.search-item:last-child { border-block-end: none; }
.search-item:hover, .search-item.kb-active { background: var(--surface-hover); }
.search-item.disabled { opacity: 0.45; cursor: not-allowed; }
.search-item .nm { font-size: 15px; font-weight: 600; }
.search-item .meta { font-size: 12px; color: var(--muted-dark); margin-block-start: 3px; display: flex; gap: 8px; flex-wrap: wrap; }
.search-item .price { color: var(--primary); font-weight: 700; white-space: nowrap; font-variant-numeric: tabular-nums; }

.cart-area {
  flex: 1; background: var(--surface); border: 1px solid var(--border);
  border-radius: 18px; padding: 14px; overflow-y: auto; min-height: 180px;
}
.cart-item {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  background: var(--bg); border: 1px solid var(--border);
  padding: 12px; border-radius: 14px; margin-block-end: 10px;
}
.cart-item h3 { font-size: 15px; font-weight: 600; }
.cart-item .sub { font-size: 11.5px; color: var(--muted-dark); margin-block-start: 3px; }
.qty-control {
  display: flex; align-items: center; gap: 6px; background: var(--surface);
  padding: 4px 6px; border-radius: 10px; border: 1px solid var(--border);
}
.qty-control button { background: transparent; color: var(--text); font-size: 17px; width: 44px; height: 44px; min-height: 44px; }
.qty-control input {
  width: 52px; padding: 4px; text-align: center; font-size: 15px;
  border: none; background: transparent; font-variant-numeric: tabular-nums;
}
.qty-control input:focus { box-shadow: none; }

.pos-right {
  flex: 1; background: var(--surface); border: 1px solid var(--border);
  border-radius: 18px; padding: 18px; display: flex; flex-direction: column;
  justify-content: space-between; gap: 16px;
}
.summary-total {
  font-size: 32px; font-weight: 800; text-align: center;
  margin-block: 12px 2px; font-variant-numeric: tabular-nums;
}
.btn-sell {
  background: var(--primary); color: var(--btn-text-color);
  padding: 16px; font-size: 16px; border-radius: 12px; font-weight: 700; width: 100%;
}
.btn-sell-print {
  background: var(--surface-hover); color: var(--text); padding: 13px;
  font-size: 15px; border-radius: 12px; border: 1px solid var(--border-hover);
  margin-block-start: 9px; width: 100%;
}

/* ---------- الجداول ---------- */
.table-container {
  overflow-x: auto; border-radius: 18px; border: 1px solid var(--border);
  background: var(--surface); margin-block-start: 14px;
}
table { width: 100%; border-collapse: collapse; }
th, td { padding: 13px 14px; text-align: start; border-block-end: 1px solid var(--border); font-size: 14px; }
th { color: var(--muted-dark); font-size: 12.5px; background: var(--surface-hover); font-weight: 600; white-space: nowrap; }
tbody tr:last-child td { border-block-end: none; }
td.num { font-variant-numeric: tabular-nums; }

.badge { padding: 5px 11px; border-radius: 20px; font-size: 12px; font-weight: 600; display: inline-block; white-space: nowrap; }
.badge-ok { background: var(--primary-glow); color: var(--primary); }
.badge-warn { background: var(--warning-glow); color: var(--warning); }
.badge-danger { background: var(--danger-glow); color: var(--danger); }

.empty-state { padding: 44px 20px; text-align: center; color: var(--muted-dark); }
.empty-state .em { font-size: 34px; display: block; margin-block-end: 10px; opacity: 0.7; }
.empty-state .t { font-size: 15px; color: var(--muted); margin-block-end: 5px; font-weight: 600; }
.empty-state .d { font-size: 13px; }

.alert-item {
  background: var(--surface); padding: 13px 15px; border-radius: 14px;
  border: 1px solid var(--border); margin-block-end: 10px;
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
}
.alert-expiry { border-inline-start: 3px solid var(--danger); }
.alert-low { border-inline-start: 3px solid var(--warning); }
.alert-item .t { font-size: 14px; font-weight: 600; }
.alert-item .d { font-size: 12px; color: var(--muted-dark); margin-block-start: 3px; }

.list-more { display: flex; justify-content: center; padding: 16px; }

.readonly-banner {
  background: var(--warning-glow); border: 1px solid var(--warning);
  color: var(--warning); padding: 12px 16px; border-radius: 12px;
  margin-block-end: 16px; font-size: 13.5px; font-weight: 600;
}

#reader { width: 100%; border-radius: 12px; overflow: hidden; }
#print-frame { position: fixed; inset-block-start: -9999px; width: 1px; height: 1px; border: 0; }

@media (max-width: 767px) {
  .content-area { padding-block-end: calc(96px + env(safe-area-inset-bottom)); }
  .header { padding-inline: 12px; }
  .nav-btns { display: none; }
  .bottom-nav button { min-height: 52px; padding-block: 7px; touch-action: manipulation; }
  .table-container { overflow: visible; border: 0; background: transparent; }
  .table-container table, .table-container tbody, .table-container tr, .table-container td { display: block; width: 100%; }
  .table-container thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .table-container tr { margin-block-end: 10px; padding: 12px 14px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; }
  .table-container td { display: flex; align-items: center; justify-content: space-between; gap: 14px; border: 0; padding: 6px 0; text-align: end; }
  .table-container td::before { content: attr(data-label); color: var(--muted-dark); font-size: 12.5px; font-weight: 600; text-align: start; flex-shrink: 0; }
  .table-container td:first-child { justify-content: flex-start; }
  .table-container td:first-child::before { display: none; }
  .table-container td:empty { display: none; }
  .table-container td button { min-height: 44px; }
}

/* ============================================================
   الجوال — أقل من 768px
   ============================================================ */
@media (max-width: 767px) {
  .content-area { padding-block-end: 92px; }   /* مساحة للشريط السفلي */

  .header .nav-btns { display: none; }
  .header { padding: 10px 14px; }

  .bottom-nav {
    display: flex;
    position: fixed;
    inset-block-end: 0;
    inset-inline: 0;
    background: var(--blur-bg);
    backdrop-filter: blur(20px);
    border-block-start: 1px solid var(--border);
    padding: 8px 6px calc(8px + env(safe-area-inset-bottom));
    z-index: 50;
    justify-content: space-around;
  }
  .bottom-nav button {
    background: transparent; display: flex; flex-direction: column;
    align-items: center; gap: 3px; padding: 6px 10px;
    color: var(--muted-dark); font-size: 11px; font-weight: 600; flex: 1;
  }
  .bottom-nav button .ic { font-size: 19px; line-height: 1; }
  .bottom-nav button.active { color: var(--primary); }

  #toast-container { inset-block-end: 100px; }

  /* الجداول تصير بطاقات — بدل التمرير الأفقي المزعج */
  .table-container { border: none; background: transparent; overflow: visible; }
  table, tbody, tr, td { display: block; width: 100%; }
  thead { position: absolute; inset-inline-start: -9999px; }
  tr {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 14px; padding: 12px 14px; margin-block-end: 10px;
  }
  td {
    display: flex; justify-content: space-between; align-items: center;
    gap: 14px; border: none; padding: 5px 0; font-size: 14px;
  }
  td::before {
    content: attr(data-label);
    color: var(--muted-dark); font-size: 12.5px; font-weight: 500; flex-shrink: 0;
  }
  td:empty { display: none; }

  .summary-total { font-size: 28px; }
}

/* ============================================================
   الحاسوب — 768px فأكثر
   ============================================================ */
@media (min-width: 768px) {
  .content-area { padding: 28px 32px 40px; }
  .header { padding: 14px 32px; }
  .pos-container { flex-direction: row; align-items: stretch; }
  .pos-right { max-width: 340px; }
  .dash-grid { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
  .dash-card .value { font-size: 33px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .header, .bottom-nav, #toast-container { display: none !important; }
}

/* ---------- الإتلاف وتقرير الهدر ---------- */
/* حوار الإخراج يعرض حقلين وقائمة، فيحتاج تسميات ظاهرة لا placeholder وحده. */
dialog label {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--muted); margin-block: 12px 5px;
}
dialog select {
  width: 100%; padding: 11px 12px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  font: inherit;
}
dialog .dialog-hint {
  font-size: 12px; color: var(--muted-dark);
  margin-block: 14px 0; line-height: 1.6;
}

.btn-sm { padding: 6px 12px; font-size: 12px; }
.alert-item .btn-sm { flex-shrink: 0; }

/* عدد التنبيهات المخفية: القطع الصامت كان يخفيها دون أن يعرف المستخدم. */
.alert-more {
  text-align: center; font-size: 13px; color: var(--muted-dark);
  padding: 10px; border: 1px dashed var(--border); border-radius: 12px;
}

.waste-hint {
  font-size: 13px; color: var(--muted); line-height: 1.7;
  background: var(--surface); border-inline-start: 3px solid var(--warning);
}

/* رموز واجهة موحّدة بدل الرموز التعبيرية، مع مساحة لمس ثابتة في الهاتف. */
.ui-icon { width: 20px; height: 20px; flex: 0 0 auto; }
.button-icon { width: 18px; height: 18px; flex: 0 0 auto; vertical-align: -4px; }
.nav-btns button, .bottom-nav button { display: inline-flex; align-items: center; gap: 7px; }
.bottom-nav button { justify-content: center; }
.search-item { text-align: start; }
button.search-item { width: 100%; border: 0; font: inherit; color: inherit; cursor: pointer; }
.search-item:focus-visible { position: relative; z-index: 1; }
.empty-state .em { display: inline-flex; align-items: center; justify-content: center; }
.empty-state .em .ui-icon { width: 32px; height: 32px; }